Nist
[计] 美国国家标准及技术研究所
🗣️ 情景例句
OK. Sit down, please. What would you like, Chinese tea or coffee?
好的，请坐。你想喝点什么，中国茶还是咖啡？
An ounce of prevention is worth a pound of cure.
预防胜于治疗。
Good morning, Mrs Brown. Well, what's your trouble, young man?
布朗太太早上好。嗯，小伙子有什么病？